Home / 3,408.80-5,113.20-2,862.08

Finding the Fourth Proportional to 3,408.80, 5,113.20 and 2,862.08

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Solution

The fourth proportional to 3,408.80, 5,113.20 and 2,862.08 is: 4,293.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.80 : 5,113.20 = 2,862.08 : x
  2. Step 2: Convert to fraction form
    3,408.80/5,113.20 = 2,862.08/x
  3. Step 3: Cross multiply
    3,408.80x = 5,113.20 × 2,862.08
  4. Step 4: Simplify right side
    3,408.80x = 14,634,387.46
  5. Step 5: Solve for x
    x = 14,634,387.46/3,408.80
  6. Step 6: Final answer
    x = 4,293.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.